/*
 * @Author: firefly717
 * @Date: 2024-06-23 15:59:17
 * @LastEditTime: 2024-06-23 15:59:20
 * @Description: 
 */
import "dart:async";
 
foo() async {
  print('foo E');
  String value = await '100';
  print('foo X $value');
}

main() {
  print('main E');
  Future(() => 111).then((val) => print(val));
  Future.value(333).then((a)=> print(a));
  foo();
  print("main X");
}